Shield equipment capable of realizing underground docking and docking method

A technology of shield tunneling and equipment, applied in mining equipment, underground chambers, shaft equipment, etc., can solve the problems of poor sealing effect and low docking efficiency of shield tunneling, so as to facilitate dismantling in the tunnel, improve construction safety factor, The effect of improving the sealing effect

Active Publication Date: 2022-04-29
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a shield equipment and a docking method that can realize underground docking, which solves the problems of low shield docking efficiency and poor sealing effect in the prior art

Method used

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  • Shield equipment capable of realizing underground docking and docking method
  • Shield equipment capable of realizing underground docking and docking method
  • Shield equipment capable of realizing underground docking and docking method

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Embodiment 3

[0034] Embodiment 3: A docking method of shield equipment that can realize underground docking, the steps are as follows:

[0035] S1: The radially telescopic gage knife 2-5 on the axially telescopic cutter head Ⅰ102 of the receiving side shield 1 is retracted in the radial direction, the atmospheric pressure cutter 2-4 is removed, and the telescopic drive mechanism 2-3 drives the axial The telescopic cutter head Ⅰ 102 is retracted as a whole; that is, the axial telescopic cutter head Ⅰ is retracted into the first shield body to avoid interference with the penetration side shield and facilitate the smooth docking;

[0036] S2: The shield machine 2 on the penetrating side continues to excavate and arrives within the set distance L from the shield machine 1 on the receiving side; that is, it excavates forward to a smaller distance L from the axial telescopic cutter head Ⅰ (L=5mm The value range of ~100mm can also be adjusted according to the actual construction conditions);

[...

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Abstract

The invention discloses shield tunneling equipment and a docking method capable of realizing underground docking, which solves the problems of low shield docking efficiency and poor sealing effect in the prior art. The shield equipment of the present invention includes a shield on the receiving side and a shield on the penetrating side, the shield on the receiving side includes a first shield, and an axially telescopic cutter head I is arranged in the first shield; the penetrating The side shield includes a second shield body, the second shield body is equipped with an axially telescopic cutter head II, and the front end of the second shield body is provided with a penetrating notch ring. In the docking state, the penetrating notch ring penetrates into the first shield body And a physical sealing mechanism or a chemical sealing mechanism is provided at the joint with the first shield body. In the present invention, a physical sealing mechanism or a chemical sealing mechanism is arranged at the docking point, and different sealing and water-stopping methods are adopted for different formations, so as to improve the sealing effect and construction safety factor, and is suitable for underwater docking schemes under high water pressure and ultra-long distance conditions. The ultra-long-distance tunnel construction has certain reference significance.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to shield equipment and a docking method capable of realizing underground docking. Background technique [0002] With the increasing demand for ultra-long-distance and ultra-high water pressure tunnels, more and more challenges are posed to shield construction and shield design. There are few reference projects for shield tunneling projects facing ultra-long distances and high water pressure in the world. At present, the general excavation service life of the shield machine is 10km. Since crossing the river and sea or other objective conditions do not allow the installation of intermediate working wells, ultra-long-distance excavation increases the safety risk of key components of the shield machine during the construction process; If there is a major fault or abnormal damage in the cave, it will be difficult to repair and overhaul. The existing document CN201910623576...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D9/08E21D11/10
CPCE21D9/06E21D9/0607E21D9/0874E21D11/10
Inventor 贺开伟崔俊峰叶超张鹏豪冀庆恩徐纯杰王静郑帅超廖兆锦翟聪
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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